CVE intelligence and bounded remediation
CVE-2015-4684 — Polycom Realpresence Resource Manager security vulnerability
Multiple directory traversal vulnerabilities in Polycom RealPresence Resource Manager (aka RPRM) before 8.4 allow (1) remote authenticated users to read arbitrary files via a .. (dot dot) in the Modifier parameter to PlcmRmWeb/FileDownload; or remote authenticated administrators to upload arbitrary files via the (2) Filename or (3) SE_FNAME parameter to PlcmRmWeb/FileUpload or to read and remove arbitrary files via the (4) filePathName parameter in an importSipUriReservations SOAP request to PlcmRmWeb/JUserManager.
- Severity
- Medium
- CVSS
- 6.5 (3.0)
- Published
- 2017-09-19
- CISA KEV
- Not currently listed
- Ecosystem
- software/application
- Weaknesses
- CWE-255
Affected products
- polycom / realpresence_resource_manager
Matched remediation archetype
Path traversal, unsafe upload, and file handling
This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.
Check exposure
- Trace untrusted filenames, archive entries, URLs, and path segments into read, write, include, extraction, and upload operations.
- Identify filesystem roots, mount permissions, symbolic-link behavior, archive handling, and whether uploaded content is web-accessible or executable.
- Review canonicalization and containment checks across supported operating systems and storage backends.
Remediate safely
- Generate server-side storage identifiers and resolve paths beneath a fixed root using filesystem-aware containment checks.
- Reject absolute, parent-relative, alternate-separator, device, link, and archive entries that escape the intended root.
- Store uploads outside executable or served paths, validate type and size, and use private atomic temporary files.
Authoritative sources
Complete CVE record and remediation plan
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